:root {
  --primary: #0f172a;        /* Deep Navy */
  --primary-light: #1e293b;  /* Slate Navy */
  --accent: #ea580c;         /* High-visibility Call Accent */
  --accent-hover: #c2410c;   /* Darker Call Hover */
  --bg-light: #f8fafc;       /* Clean neutral background */
  --bg-white: #ffffff;       /* Pure white */
  --text-main: #334155;      /* Slate charcoal body */
  --text-dark: #0f172a;      /* Deep navy heading */
  --text-muted: #64748b;     /* Muted secondary text */
  --text-white: #f8fafc;     /* Light text on dark bg */
  --border: #e2e8f0;         /* Subtle structural borders */
  --border-dark: #334155;    /* Dark borders */
  --radius: 6px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.65;
  font-size: 1rem;
  padding-bottom: 74px; /* Space for mobile sticky call bar */
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

ul, ol {
  padding-left: 1.25rem;
  margin-bottom: 1.25rem;
}

h1, h2, h3, h4 {
  color: var(--text-dark);
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.25rem;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 1.875rem;
  margin-top: 2rem;
  letter-spacing: -0.025em;
}

h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
}

p {
  margin-bottom: 1.25rem;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo-group {
  display: flex;
  flex-direction: column;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.025em;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Nav Menu Desktop */
.nav-menu {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 992px) {
  .nav-menu {
    display: flex;
  }
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-main);
  transition: color 0.2s;
  cursor: pointer;
}

.nav-link:hover {
  color: var(--primary);
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--bg-white);
  min-width: 260px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0;
  z-index: 100;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  display: block;
}

.dropdown-item {
  display: block;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--text-main);
  transition: background-color 0.2s;
}

.dropdown-item:hover {
  background-color: var(--bg-light);
  color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent);
  color: var(--text-white);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  text-align: center;
  min-height: 44px; /* Accessibility touch target */
}

.btn:hover {
  background-color: var(--accent-hover);
}

.btn:active {
  transform: scale(0.98);
}

.btn-large {
  font-size: 1.125rem;
  padding: 1rem 2rem;
}

/* Mobile Nav Toggle */
.hamburger {
  display: block;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
  padding: 0.5rem;
  min-height: 44px;
  min-width: 44px;
}

@media (min-width: 992px) {
  .hamburger {
    display: none;
  }
}

/* Mobile Menu */
.mobile-nav {
  display: none;
  flex-direction: column;
  background-color: var(--bg-white);
  border-top: 1px solid var(--border);
  padding: 1rem 1.5rem;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  box-shadow: var(--shadow-md);
  z-index: 40;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav .nav-link,
.mobile-nav .mobile-sub-link {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  display: block;
}

.mobile-nav .mobile-sub-link {
  padding-left: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.mobile-nav-services-label {
  font-weight: 700;
  padding: 0.75rem 0;
  color: var(--primary);
  border-bottom: 1px solid var(--border);
}

.mobile-nav .btn {
  margin-top: 1rem;
  width: 100%;
}

/* Hero Section */
.hero {
  background-color: var(--primary);
  color: var(--text-white);
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  color: var(--text-white);
  margin-bottom: 1.5rem;
  font-size: 2.5rem;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 3.5rem;
  }
}

.hero-subtitle {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 2rem;
  color: #cbd5e1;
}

.eyebrow {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Content Area */
.content-area {
  padding: 4rem 1.5rem;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
}

/* Call Box */
.call-box {
  background-color: var(--primary-light);
  color: var(--text-white);
  padding: 2.5rem;
  border-radius: var(--radius);
  text-align: center;
  margin: 3rem 0;
  box-shadow: var(--shadow-md);
}

.call-box h3 {
  color: var(--text-white);
  margin-top: 0;
}

.call-box p {
  color: #cbd5e1;
  margin-bottom: 1.5rem;
}

/* Checklists */
.checklist {
  list-style-type: none;
  padding-left: 0;
}

.checklist li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.75rem;
}

.checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-card {
  background-color: var(--bg-white);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: var(--radius);
  transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.service-card h3 {
  margin-top: 0;
  font-size: 1.25rem;
  color: var(--primary);
}

.service-card h3 a {
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color 0.2s;
}

.service-card h3 a:hover {
  text-decoration-color: var(--primary);
}

.service-card p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* FAQ List */
.faq-list {
  list-style: none;
  padding-left: 0;
  margin: 2rem 0;
}

.faq-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h3 {
  margin-top: 0;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.faq-item p {
  margin-bottom: 0;
}

/* Footer */
.site-footer {
  background-color: var(--primary);
  color: #cbd5e1;
  padding: 4rem 0 2rem;
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-col h4 {
  color: var(--text-white);
  font-size: 1.125rem;
  margin-bottom: 1.25rem;
  margin-top: 0;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text-white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding-top: 2rem;
  text-align: center;
}

/* Sticky Mobile Call Bar */
.mobile-call-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--accent);
  color: var(--text-white);
  text-align: center;
  padding: 1rem;
  font-weight: 700;
  font-size: 1.125rem;
  z-index: 100;
  display: block;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
  .mobile-call-bar {
    display: none;
  }
}

/* Breadcrumbs */
.breadcrumbs {
  padding: 1rem 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  gap: 0.5rem;
  align-items: center;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: '›';
  margin-right: 0.5rem;
  color: var(--text-muted);
  font-weight: 600;
}

.breadcrumbs a {
  color: var(--text-main);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: color 0.2s, text-decoration-color 0.2s;
}

.breadcrumbs a:hover {
  color: var(--primary);
  text-decoration-color: var(--primary);
}

.breadcrumbs [aria-current="page"] {
  color: var(--text-muted);
  font-weight: 600;
  text-decoration: none;
}